Exact Mass: 263.9939888
Exact Mass Matches: 263.9939888
Found 7 metabolites which its exact mass value is equals to given mass value 263.9939888,
within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error
0.0002 dalton.
Methylgallic acid-O-sulphate
Methylgallic acid-O-sulphate is a conjugate of methylgallic acid and sulphate. methylgallic acid is a methyl ester of gallic acid. Gallic acid is a trihydroxybenzoic acid, a type of phenolic acid, a type of organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. The chemical formula is C6H2(OH)3COOH. Gallic acid is found both free and as part of hydrolyzable tannins. (Wikipedia)
4-Methylgallic acid 3-sulfate
4-o-methylgallic acid 3-o-sulphate belongs to gallic acid and derivatives class of compounds. Those are compounds containing a 3,4,5-trihydroxybenzoic acid moiety. 4-o-methylgallic acid 3-o-sulphate is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa).